CVE-2026-41084 Apache Airflow: API authorization bypass: bulk TaskInstances allows cross-DAG mutation

A bug in Apache Airflow's bulk Task Instances API PATCH/DELETE /api/v2/dags/dagid/dagRuns/dagrunid/taskInstances evaluated authorization against the dagid resolved from the URL path while operating on the dagid / dagrunid extracted from request-body entity fields. An authenticated UI/API user wit...

CVE-2026-41084

CVE-2026-41084: Apache Airflow bug in the bulk Task Instances API (PATCH/DELETE /api/v2/dags/{dag_id}/dagRuns/{dag_run_id}/taskInstances) evaluated authorization from the URL dag_id while operating on dag_id/dag_run_id from the request body. An authenticated user with edit permission on one Dag c...

EUVD-2026-33591

Apache Airflow's official documentation at core-concepts/dag-run.html "Passing Parameters when triggering Dags" showed a verbatim BashOperatorbashcommand="echo value: dagrun.conf'conf1' " example without any quoting / sanitization warning. Dag authors who copied the pattern verbatim into...

CVE-2026-42252 Apache Airflow: BashOperator Jinja2 injection via dag_run.conf — low-privilege user pattern

Apache Airflow's official documentation at core-concepts/dag-run.html "Passing Parameters when triggering Dags" showed a verbatim BashOperatorbashcommand="echo value: dagrun.conf'conf1' " example without any quoting / sanitization warning. Dag authors who copied the pattern verbatim into...

CVE-2026-42252 Apache Airflow: BashOperator Jinja2 injection via dag_run.conf — low-privilege user pattern

Apache Airflow's official documentation at core-concepts/dag-run.html "Passing Parameters when triggering Dags" showed a verbatim BashOperatorbashcommand="echo value: dagrun.conf'conf1' " example without any quoting / sanitization warning. Dag authors who copied the pattern verbatim into...

CVE-2026-42252

Apache Airflow's official documentation at core-concepts/dag-run.html "Passing Parameters when triggering Dags" showed a verbatim BashOperatorbashcommand="echo value: dagrun.conf'conf1' " example without any quoting / sanitization warning. Dag authors who copied the pattern verbatim into...

CVE-2026-42252 Apache Airflow: BashOperator Jinja2 injection via dag_run.conf — low-privilege user pattern

Apache Airflow's official documentation at core-concepts/dag-run.html "Passing Parameters when triggering Dags" showed a verbatim BashOperatorbashcommand="echo value: dagrun.conf'conf1' " example without any quoting / sanitization warning. Dag authors who copied the pattern verbatim into...

EUVD-2026-33587

Apache Airflow's scheduler-side deadline-reference decoder SerializedCustomReference.deserializereference imported and dispatched arbitrary class paths drawn from DAG-author-controlled serialized state without an allowlist or plugin-registry gate. A DAG author whose code reaches the scheduler — t...

CVE-2026-45360 Apache Airflow: Arbitrary import in custom deadline-reference deserialization

Apache Airflow's scheduler-side deadline-reference decoder SerializedCustomReference.deserializereference imported and dispatched arbitrary class paths drawn from DAG-author-controlled serialized state without an allowlist or plugin-registry gate. A DAG author whose code reaches the scheduler — t...

CVE-2026-45426 Apache Airflow: Log server JWT authorization bypass via Python lstrip() character stripping allows cross-Dag log access

Exploitation requires the attacker to already be an authenticated Airflow worker holding a valid Log-server JWT issued for at least one Dag. Apache Airflow's Log server authorized JWT tokens against Dag IDs by applying Python's str.lstrip to the requested path segment when verifying the JWT's sub...

CVE-2026-45426

CVE-2026-45426 describes an authenticated Airflow worker with a valid Log-server JWT for at least one Dag who can abuse Python str.lstrip() in the JWT sub verification to access logs of other Dags. The left-stripping behavior treats a set of characters as deletable, not a prefix, enabling cross-D...

CVE-2026-45426 Apache Airflow: Log server JWT authorization bypass via Python lstrip() character stripping allows cross-Dag log access

Exploitation requires the attacker to already be an authenticated Airflow worker holding a valid Log-server JWT issued for at least one Dag. Apache Airflow's Log server authorized JWT tokens against Dag IDs by applying Python's str.lstrip to the requested path segment when verifying the JWT's sub...

CVE-2026-45426 Apache Airflow: Log server JWT authorization bypass via Python lstrip() character stripping allows cross-Dag log access

Exploitation requires the attacker to already be an authenticated Airflow worker holding a valid Log-server JWT issued for at least one Dag. Apache Airflow's Log server authorized JWT tokens against Dag IDs by applying Python's str.lstrip to the requested path segment when verifying the JWT's sub...

EUVD-2026-33585

Exploitation requires the attacker to already be an authenticated Airflow worker holding a valid Log-server JWT issued for at least one Dag. Apache Airflow's Log server authorized JWT tokens against Dag IDs by applying Python's str.lstrip to the requested path segment when verifying the JWT's sub...

CVE-2026-46764 Apache Airflow: Event Log detail endpoint bypasses DAG-scoped event log permission filter

The Event Log detail endpoint GET /api/v2/eventLogs/eventlogid in Apache Airflow fetched audit-log rows directly by numeric ID after only the generic Audit Log permission check, while the collection endpoint GET /api/v2/eventLogs applied per-Dag scoping. An authenticated UI/API user with audit-lo...

CVE-2026-46764

The Event Log detail endpoint GET /api/v2/eventLogs/eventlogid in Apache Airflow fetched audit-log rows directly by numeric ID after only the generic Audit Log permission check, while the collection endpoint GET /api/v2/eventLogs applied per-Dag scoping. An authenticated UI/API user with audit-lo...

EUVD-2026-33584

The Event Log detail endpoint GET /api/v2/eventLogs/eventlogid in Apache Airflow fetched audit-log rows directly by numeric ID after only the generic Audit Log permission check, while the collection endpoint GET /api/v2/eventLogs applied per-Dag scoping. An authenticated UI/API user with audit-lo...

CVE-2026-46764 Apache Airflow: Event Log detail endpoint bypasses DAG-scoped event log permission filter

The Event Log detail endpoint GET /api/v2/eventLogs/eventlogid in Apache Airflow fetched audit-log rows directly by numeric ID after only the generic Audit Log permission check, while the collection endpoint GET /api/v2/eventLogs applied per-Dag scoping. An authenticated UI/API user with audit-lo...

CVE-2026-46764

The CVE-2026-46764 affects Apache Airflow’s Event Log APIs: the detail endpoint GET /api/v2/eventLogs/{event_log_id} returns audit-log rows by numeric ID after only a generic Audit Log permission check, while GET /api/v2/eventLogs applies per-Dag scoping. An authenticated user with audit-log read...

PT-2026-45368

Apache Airflow's official documentation at core-concepts/dag-run.html "Passing Parameters when triggering Dags" showed a verbatim BashOperatorbash command="echo value: dag run.conf'conf1' " example without any quoting / sanitization warning. Dag authors who copied the pattern verbatim into...